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Ultrasonic degradation of polybutadiene and isotactic polypropylene

Chakraborty, Jayanta and Sarkar, Jayashri and Kumar, Ravi and Madras, Giridhar (2004) Ultrasonic degradation of polybutadiene and isotactic polypropylene. In: Polymer Degradation and Stability, 85 (1). pp. 555-558.

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Abstract

The ultrasonic degradation of polybutadiene and isotactic polypropylene in solution was studied at different temperatures and in different solvents. The time evolution of molecular weight distribution was determined experimentally through gel permeation chromatography. Degradation rate coefficients were determined from a model based on continuous distribution kinetics and assuming mid-point chain scission. The variation of rate coefficients with vapour pressure and kinematic viscosity was also investigated

Item Type: Journal Article
Additional Information: The copyright belongs to Elsevier.
Keywords: Ultrasound;Degradation;Polybutadiene;Isotactic polypropylene;Solvent effect;Continuous distribution kinetics
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 27 Apr 2006
Last Modified: 19 Sep 2010 04:26
URI: http://eprints.iisc.ernet.in/id/eprint/6503

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